View full sizeMs. Nasirova was sentenced to 10 months in jail Friday and faces deportation.

STATEN ISLAND, N.Y. -- Entrusted with the care of a 5-month-old infant and her toddler brother, a nanny did the unthinkable, slapping, shaking and kicking the helpless children in their Grasmere home.

But the youngsters are safe now from their tormentor, Mamura Nasirova, who faces potential deportation after she serves a 10-month jail sentence imposed Friday.

"This is a case where the defendant betrayed a trust," said Judge Mario F. Mattei. "Even if the defendant doesn't take full blame for her actions -- claiming in her country it's OK -- the fact she did this is somewhat disturbing and shocking. It's the largest betrayal of trust you can have. I think that 10 months in jail is appropriate."

Ms. Nasirova, who was garbed in a thin, gray V-neck sweater, blue three-quarter-length pants and black shoes, declined, through a Russian interpreter, to make a statement before sentencing.

The victims' parents were not present.

Last month, Ms. Nasirova, 52, pleaded guilty in Stapleton Criminal Court to two counts of endangering a child's welfare, stemming from the disturbing incidents earlier this year. She entered the top-count plea in exchange for a 10-month sentence. Ms. Nasirova has been behind bars since her arrest in February.

Prosecutors said hidden cameras inside the home captured the Uzbekistan native slapping and shaking the infant girl and smacking, kicking and shaking her 17-month-old brother. One of the incidents was posted on YouTube, shocking parents around Staten Island.

A law enforcement source said the victims' mother and father resorted to surveillance due to their suspicions about the nanny.

The YouTube video pertains to a Jan. 28 incident and lasts one minute, 18 seconds. It shows a woman, identified as Ms. Nasirova in the title and video description, with her back to the camera.

The baby is seated in a small chair. The defendant apparently is trying to feed her with a bottle, and at about eight seconds in, she starts slapping the infant's face, while the infant's brother sits on a couch nearby.

Ms. Nasirova also shakes the infant by the chest and by the feet, then appears to feed her with a bottle before abruptly lifting her from the chair and walking toward a doorway.

The mother, who wasn't home, saw that video live on a remote feed and rushed home to confront Ms. Nasirova, the source said. The parents then contacted police.

An ensuing probe revealed that Ms. Nasirova also attacked the children on Jan. 24 and 25, said court documents.

She was particularly abusive to the boy, hitting him in the face with her hand and about the body with a baby bottle, said the source. She also shook the toddler threw him on a bed, slammed him onto a couch and pulled his hair multiple times, said court records and the source.

Ms. Nasirova also shook the helpless infant, covering her mouth and throwing her onto a bed, said court papers.

Ms. Nasirova, who's not a U.S. citizen, potentially faces deportation after serving her sentence, said a spokesman for District Attorney Daniel Donovan.